just-the-docs/docs/tests/navigation/order/index.md

layout, title, parent, grand_parent

layout	title	parent	grand_parent
default	Order	Navigation	Tests

Order

The value of nav_order can be numbers (integers, floats) and/or strings. The following tests illustrate their effects.

• Default, using title instead of nav_order fields.
• Strings, lexicographically ordered, possibly case-insensitively.
• Integers, numerically ordered.
• Floats, numerically ordered.
• Mixture, with numbers before strings.